ASTROSAT CZTI

Data Quality Report

Orbit 48467

Creation date: 2024-09-13T22:38:45.681838
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_029T01_9000006426_48467cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48467cztM0_level2_quad_clean.evt
Size (bytes)580,233,600113,181,120
Size553.4 MB 107.9 MB
Events in quadrant A7,639,509768,899
Events in quadrant B6,176,080666,950
Events in quadrant C3,330,457768,824
Events in quadrant D3,753,343702,715

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281190
B0237520
C0156640
D0167380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74622743.671938%
B7462142919.150362%
C7462250.335031%
D7462911.219512%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7462 7462 24 24 0.32% 0.32%
B 7462 7462 951 951 12.74% 12.74%
C 7462 7462 16 16 0.21% 0.21%
D 7462 7462 61 61 0.82% 0.82%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 4305354 24649.18 824 805 174.6
A 7 3 140905 802.26 824 805 174.6
A 13 254 14516 78.51 824 805 174.6
B 12 16 3119946 20909.41 747 722 149.2
B 4 21 26791 174.75 747 722 149.2
B 5 171 25262 164.5 747 722 149.2
C 15 208 87549 450.5 809 812 192.5
C 12 250 23240 116.49 809 812 192.5
C 12 2 22320 111.71 809 812 192.5
D 7 96 199797 968.35 811 786 205.5
D 12 233 137713 666.26 811 786 205.5
D 2 249 109546 529.2 811 786 205.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter